Muscle
Iliacus
Hip flexor (with psoas)
High-yield
Femoral nerve supplies iliacus; joins psoas to insert on the lesser trochanter.
Overview
A fan-shaped muscle in the iliac fossa that joins psoas major to form iliopsoas, the prime flexor of the hip.
Reference facts
- Origin
Iliac fossa and ala of the sacrum
- Insertion
Lesser trochanter of the femur (via the iliopsoas tendon)
- Action
Flexes the thigh at the hip and stabilises the joint
- Innervation
Femoral nerve (L2, L3)
- Blood supply
Iliolumbar and medial femoral circumflex arteries